Western Electric improved D-spec vertical cutterhead

Published at 800 × 305 in Things I learned on Phono EQ curves, Pt. 4
Western Electric improved D-spec vertical cutterhead

Picture of an improved WE d spec vertical cutting head probably from 1934 or 1935
193435年頃に製造されたWestern Electric 改良版Dスペックの縦振動記録用カッターヘッドの実物 Nicholas Bergh さん提供
photo courtesy of Nicholas Bergh

Western Electric improved D spec vertical cutterhead

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